https://devzone.nordicsemi.com/f/nordic-q-a/12881/status-of-i2c-pins-and-gpios-in-system-off-modeWhat is the status of I2C pins and GPIO pins in the System OFF mode? Do they float once the SOC enters SYSTEM OFF mode? Here the accelerometer we are using consumes high current when its I2C pins are floating. So it is critical to keep it not floatingen-USTelligent Community 13Fri, 01 Apr 2016 12:23:34 GMThttps://devzone.nordicsemi.com/thread/49010?ContentTypeID=1Fri, 01 Apr 2016 12:23:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ee3ff157-03e2-49f8-91e7-341a1e55eb2dOle Bauck<p>That should not cause any increase in current consumption unless the pins are pulled to ground. How much current are you experiencing in sleep? Will the current increase also happen if you don&#39;t initialize the twi?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/49009?ContentTypeID=1Fri, 01 Apr 2016 05:22:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ac5d57b6-a076-4f6c-8f93-fca05bafc27dAkhil<p>Thank you for the prompt answser. Could you also tell me if any of these pins increase the current consumption in System OFF mode anymore than the 0.6uA System OFF current?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/49008?ContentTypeID=1Thu, 31 Mar 2016 12:30:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:70c8a760-ef56-4fac-8e50-f9bf0d33b647Ole Bauck<p>The gpio will keep its state in system OFF mode. The twi (i2c) pins are configured as inputs with pull-up resistor (typ. 13kohm):</p> <pre><code>#define SCL_PIN_CONF ((GPIO_PIN_CNF_SENSE_Disabled &lt;&lt; GPIO_PIN_CNF_SENSE_Pos) \ | (GPIO_PIN_CNF_DRIVE_S0D1 &lt;&lt; GPIO_PIN_CNF_DRIVE_Pos) \ | (GPIO_PIN_CNF_PULL_Pullup &lt;&lt; GPIO_PIN_CNF_PULL_Pos) \ | (GPIO_PIN_CNF_INPUT_Connect &lt;&lt; GPIO_PIN_CNF_INPUT_Pos) \ | (GPIO_PIN_CNF_DIR_Input &lt;&lt; GPIO_PIN_CNF_DIR_Pos)) #define SDA_PIN_CONF SCL_PIN_CONF </code></pre><div style="clear:both;"></div>